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- import sys
- from functools import partial
- def find_entrypoints(group_name: str):
- """
- Find entrypoints of a given group using either `importlib.metadata` or the
- older `pkg_resources` mechanism.
- Yields tuples of the entrypoint name and a callable function that will
- load the actual entrypoint.
- """
- if sys.version_info >= (3, 10):
- # "Changed in version 3.10: importlib.metadata is no longer provisional."
- try:
- from importlib.metadata import entry_points
- except ImportError:
- pass
- else:
- eps = entry_points(group=group_name)
- # Only do this if this implementation of `importlib.metadata` is
- # modern enough to not return a dict.
- if not isinstance(eps, dict):
- for entry_point in eps:
- yield (entry_point.name, entry_point.load)
- return
- try:
- from pkg_resources import working_set
- except ImportError:
- pass
- else:
- for entry_point in working_set.iter_entry_points(group_name):
- yield (entry_point.name, partial(entry_point.load, require=True))
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